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KNOT INDICATOR FOR KNITTING MACHINES.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, JOHN F. STEWARD, of Plano, in the vcounty ofKendall, in the State ot Illinois, have invented a new and usefulimprovement in Knitting Machines, namely, a Knot Indicator, to indicatethe approach of knots in the yarn while knitting, in order that theoperator may knit carefully over them, or drawthem through the machinewith the hand (if too large to knit over) lto prevent the liability ot'their entering the machine unnoticed and breaking the yarn, which willleave a hole in the fabric, or throw the Work out of the machine,thereby relieving the operator from the tedious necessity of watchingfor their approach, and thus facilitate knitting; and I do herebydeclare that the following is a full, clear, and exact description ofthe same, reference being had to the annexed drawings, making apart ofthis specification, in which- Figure 1 is a side view; and

Figure 2 a front view. 'i

A is the bell, B the knot grasper, C knotl-grasper arm, DlhammenE, fig.2, tint-coiled. spring, F F tensionV pads, G spiral spring, Hthumbfscrew, I bobhin or spool, J yarn, K knot, L clasp, `standard. ofbohbin stand, N pivot. l A The nature of my invention consists inattaching to knitting machines (to the Yhohhin .stand or otherwise) adevice to signal the approach of knots for the purposes set forth above.I eonstruet my improvement as follows:

-To the standard M of the bobbin stand l attach the clasp L, and passthe pivot N, on the lower end ofthe .arm C, through ahole in the clasp.That portion of the pivot which projects through has provided in it ahole to receive one end of a flat-coiled spring, E, the other end beingsecured to the clasp, and at all times tends to keep the arm C in anupright position and against Ythe bell. To the top of the standard M, I'attach the bell A.

Also, to the upper end of the arm C, I attach the knot grasper B. Also,to the arm C, I attach the hammer D in such a position that it may comein contact with the bell A. The knot grasper B, I construct as shown infig. 2, with one or more slots diiferinginsize to suit the differentsizes of yarn; the'slots to be in width just suilicient to allow theyarn to pass freely through, yet close enough to arrest the passage of aknot or any enlargement of the yarn that would vrender itliahletto breakin knitting. The upper end of the slot I enlarge sulhciently to allowthe knot to pass, but closeit atthe top near enoug'hvto prevent the yarnfrom escaping.

The operation of my improvement is as follows: The yarn in passing tothe machine from the spool after passing the tension pads 'F F, passesthrough the knot -grasper B to the machine, (not shown.) A knot, afterpassing the tension padsF F, catches in the knot grasper B, and as theknot proceeds it -draws the arm C forward and down (as shown by redlines in fig. 1*) until the knot draws up out of the narrow part of theknot grasper, which allows it to escape, when the arm C is thrown by thespringE into its original position, (as shown by black lines in fig.`1,) when the hammer I) strikes the bell, thus signalling the approach ofthe kn'ot.

What I claim as my invention, anddesire to secure by Letters Patent, is

The arm C, with the knot grasper B, hammer D, and the spring E, incombination with the bell A, constructed and operating as hereindescribed.

JOHN F. STEWARD.

Witnesses:

JAMES D. HoLLl'sTnn, A. STEWARD.

